Engineered & supported in Hudson, Ohio since 2012330-633-7735 · info@slewpro.com
Potesta & Company
SlewPro
21 SeriesInternal gearRotek L6-37N9ZD

21N.0944.19.001 Slewing Ring Bearing

21 Series slewing ring bearing, internal gear, 1,048 mm OD × 872 mm ID. Interchangeable with Rotek L6-37N9ZD.

Specifications

SlewPro part number21N.0944.19.001
Series21 Series
Bearing designFour-point contact, single-row ball
GearInternal gear
Raceway diameter944 mm (37.17 in)
Outside diameter1,048 mm (41.26 in)
Inside diameter872 mm (34.33 in)
Overall height55.9 mm (2.20 in)
Outer ring height45.5 mm (1.79 in)
Outer ring bore944.6 mm (37.19 in)
Inner ring outside diameter943.4 mm (37.14 in)
All diameters on drawing41.26 in (1048.0 mm), 38.70 in (983.0 mm), 37.22 in (945.4 mm), 37.19 in (944.6 mm), 37.14 in (943.4 mm), 37.11 in (942.6 mm), 34.33 in (872.0 mm)
All heights on drawing2.20 in (55.9 mm), 1.79 in (45.5 mm), 0.47 in (11.9 mm)
Diametral pitch3
Number of teeth101
Pitch diameter33.67 in
Pressure angle20°
MaterialSteel, 50Mn
Approx. weight906 lb (411 kg)

Dimensions from our 3D model; confirm against the certified drawing. Load ratings and life calculations available from our engineers.

Crosses to

RotekL6-37N9ZD

Interchange based on published dimensions; our engineers confirm fit before quoting.

21 Series slewing ring

Get this bearing

Standard lead time 14–16 weeks; expediting available for an additional charge. Pricing quoted within 1–2 business days. Matching pinions available.

Request a Quote

Talk to an engineer

Need help selecting the right part? Our engineers will size it, cross it, and quote it — usually within 1–2 business days.

Not in the catalog? We design to your application, with no engineering charge.